Sales transaction e.g. immaterial goods, processing device, has coupon carrying data, where product article and coupon serial numbers are conveyed from mobile telephone to central computer to send call information to final customer

摘要

The device has a coupon representing acquired goods and carrying visible data to a usual graphic product advertising. A product article number (EAN) and a coupon serial number are similarly coded. The numbers are conveyed as SMS from a customer mobile telephone (CT) to a central computer (HC) to transfer call information as access information to a final customer of a central organization over a data link (HLC).